Separating Mixtures
What is a mixture?
two or more materials mixed together
What is concentration?
the amount of solid material dissolved in a unit of water
What is a saturated solution?
when as much solid material has dissolved in liquid
What is a reactant?
original substance
What elements make up water?
hydrogen
oxygen
What is a solution?
composed of a solvent and a solid that is dissolved in the solvent
What is an indication of a concentrated solution?
a lot of solid dissolved in a given volume of water
What is solubility?
property that indicates how readily a solute dissolves in a solvent
What is a product?
new substance that forms during a reaction
what is matter?
matter is anything that takes up space and has mass
What are the parts of a solution?
solute
solvent
What is a diluted solution?
less solid dissolved in the equivalent volume of water
What is a substance?
pure material
What is a chemical reaction?
when two or more substances are mixed together and a change occurs
what is a solid?
definite shape and volume
what is dissolve?
when a solid disappears in a liquid
What is the tool to use to measure mass?
balance
What happens when solutions evaporate?
substances form crystals
What is a precipitate?
when a new substance forms and settles out of a liquid
what is a liquid?
have a definite volume but take the shape of the container
What is the conservation of matter?
the mass of any one element at the beginning of a reaction will equal the mass of that element at the end of the reaction.
What do the results of weight mean when you have equal volumes of the same solution?
the solution that weighs more is more concentrated
What is solubility affected by?
kind of solvent
temperature
otherfactors
What happens when you mix substances with water in a bag?
chemical reactions
mixtures
solutions
what is a gas?
have neither definite shape or volume